Plug



FIG. 1 is a front, left, bottom perspective view of a plug showing our design.

FIG. 2 is a left side elevation view thereof.

FIG. 3 is a right side elevation view thereof.

FIG. 4 is a back elevation view thereof.

FIG. 5 is a front elevation view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in FIGS. 1-7 illustrate breaks which indicate that the plug has no particular length, circumference, or width. None of the broken lines form any part of the claimed design. 

CLAIM The ornamental design for a plug, as shown and described. 